Rice terpene synthase 24 (OsTPS24) encodes a jasmonate-responsive monoterpene synthase that produces an antibacterial γ-terpinene against rice pathogen

Journal of Plant Physiology
Kayo YoshitomiKenji Gomi

Abstract

Rice is one of the most important crops worldwide and is widely used as a model plant for molecular studies of monocotyledonous species. The plant hormone jasmonic acid (JA) is involved in rice-pathogen interactions. In addition, volatile compounds, including terpenes, whose production is induced by JA, are known to be involved in the rice defense system. In this study, we analyzed the JA-induced terpene synthase OsTPS24 in rice. We found that OsTPS24 was localized in chloroplasts and produced a monoterpene, γ-terpinene. The amount of γ-terpinene increased after JA treatment. γ-Terpinene had significant antibacterial activity against Xanthomonas oryzae pv. oryzae (Xoo); however, it did not show significant antifungal activity against Magnaporthe oryzae. The antibacterial activity of the γ-terpinene against Xoo was caused by damage to bacterial cell membranes. These results suggest that γ-terpinene plays an important role in JA-induced resistance against Xoo, and that it functions as an antibacterial compound in rice.

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Citations

Jul 10, 2018·Journal of Experimental Botany·Yu-Chen ChuangHong-Hwa Chen
Feb 20, 2020·International Journal of Molecular Sciences·Kenji Gomi
Jul 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Minyi LinLigang Zhou
Feb 28, 2021·Cellular and Molecular Life Sciences : CMLS·Ana Rita CavacoAndreia Figueiredo
Mar 30, 2021·Plant Science : an International Journal of Experimental Plant Biology·Go SuzukiKenji Gomi
May 1, 2021·International Journal of Molecular Sciences·Ahmed G GadYing Miao
Jun 3, 2021·International Journal of Molecular Sciences·Vincent NinkuuHongmei Zeng
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hui-Ju ChenChin-Shuh Chen
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Eduardo ValarezoMiguel Angel Meneses

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